Sony TRINITRON KV-A2121D - Page 27

4-6. SECONDARY ADJUSTMENTS
SUB BRIGHTNESS ADJUSTMENT
1.
Set the system to receive a test pattern.
Press —» * «—- on the remote commander to put
the system into normal mode.
Switch off the power.
While depressing the adjusting buttons + and
- simultaneusly, turn on the power. (SUB
mode is obtained)
Minimize the @ contrast setting.
Adjust the 4 brightness control so that the
gray scale 0 IRE section is cut off completely
and the 20 IRE section is barely glowing.
Depress the © (store) button of the remote
commander.
(SUB mode is released)
If there is no test color pattern
Set the system to receive a color pattern.
Press — * < on the remote commander to put
the system into normal mode.
Set the @ color to its normal state.
. Steps are the same as above.
Since 20 IRE is nearly blue, adjust the +
brightness control so that the blue barely glows.
Same as step 7 above.
Press — * <- on the remote commander to put
the system into normal mode.
SUB COLOR ADJUSTMENT
1.
2.
Set the system to receive color bars.
Press — * « on the remote commander to put
the system into normal mode.
Cut off the power.
While depressing the adjustment buttons + and
— simultaneusly, turn on the power. (SUB mode
is obtained).
Adjust the color control so that the B out
waveform (pin © of C board connector CNC72)
is as shown in the figure below.
Depress the © (store) button of the remote
commander. (SUB mode is released)
same level
Mode select
Headphones
button
Jack
Adjustment
G 3 input jacks buttons
= OF